Stellarium

ANCIENT MARCH EQUINOX

Asked by M.THIRUNAVUKARASU

SIR,
THANKS FOR YOUR REPLY. IN STELLARIUM INDEED YEARS ARE COUNTED FOR BC PERIOD IN MINUS. GO TO 1AD AND GO BACK TO THE PREVIOUS YEAR IT WILL BE ZERO AND IF YOU GO BACK ONE MORE YEAR IT WILL START IN MINUS TO DENOTE THE BC PERIOD. SUNRISE AT EQUINOXES ALWAYS DUE EAST. FOR EXAMPLE GO TO 31ST MARCH OF 20,000 AD SUNRISE IS DUE EAST. IT IS CORRECT FOR ALL AD PERIODS. IF YOU GO BACK IN THE BC PERIOD (MINUS) THE SUNRISE SHIFTS SLOWLY TO THE SOUTH BY 10500 BC IT IS OUT BY ATLEAST 20 DEGREES SOUTH. I FEEL THERE IS CERTAINLY A PROBLEM.
YOURS FAITHUFULLY,
THIRU
.AWAITING YOUR RESPONSE.

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gzotti
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Best gzotti (georg-zotti) said : 		#1

Even if I have written this before: I mean it!

> Please read the Guide, Appendix F. Especially, F.8.

And read Wikipedia about the reason for the Gregorian Calendar reform if you don't believe me. Check March 21, 1582.

Stellarium is a tool. Its use requires some basic skills.

Please do not start a new question thread. Add your answer in the box below my answer.

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M.THIRUNAVUKARASU (thirunavu) said : 		#2

Thanks gzotti, that solved my question.

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M.THIRUNAVUKARASU (thirunavu) said : 		#3

THANKS SIR,
I UNDERSTAND THAT EQUINOXES NEED NOT BE MARCH 21 OR SEP 21 IN ANCIENT TIMES.
THANKS A LOT.